While each member of the group has had their own individual humanitarian advocacies and activities, Westlife has been supporting various projects for a charity cause from the start. One of which was when the group re-recorded "I Have A Dream" with Indonesian star Sherina for a UNICEF fund raising. Aside from that, the boys released their cover version of "Uptown Girl" as a Comic Relief single, which was one of their biggest selling singles to date. Apart from it, they have also helped the S.I.R.F. organization in aid of the South Asian tsunami victims.
On 4 November 2005, they performed together with Christina Aguilera and Diana Ross at Coca-Cola Dome in Johannesburg, South Africa for The “Unite of the Stars” Gala Banquet charity concert that supports four charities: the Nelson Mandela Children’s Fund, Unite Against Hunger, St. Mary’s Hospital and the Topsy Foundation. They've also been actively helping both the Royal National Institute for the Deaf (RNID), ChildLine and Children in Need, Cancer Research UK, Soccer Aid organizations. Most recently, they performed "Us Against the World" live on Sports Relief, of Bluebell Wood and participating in Galway's Irish Water Safety Campaign by doing an advertisement. They are also an official supporter of One World Beat. They are involved also on the Helping For Haiti charity single that was released 8 February 2010 on UK. They are promoting Who's Calling awareness campaign of Childline.